So we want to purge entire religions and races, organize mass executions, etc...? Or do we want to eliminate the threat of national security by destroying ISIS, there are no other options, we can let them be and let them continue to execute our people and have the threat of them attacking our homeland, we can be diplomatic with the savages and maybe negotiate, all these have failed and the only option is through force. We are also a democracy and a majority of Americans approve of the military strikes on the militants. Yea it could take a decade, but it's better to be safe than sorry. By doing NOTHING there will be even more groups popping up and even more threats, and more countries seeing how weak we are and using that to their advantage.